This CDH cluster has been install for months, and be used to backup logs.
Today I try to run flink on yarn, and want to open yarn web ui to check flink taskmanagers' state, i find 8088 port connect refuse.
This site can’t be reached
47.74.***.*** refused to connect.
Search Google for *** *** 8088
yarn port & address config as follows:
Even curl 'http://ip:8088' on the resource manager host, also get "connection refuse"
[root@bigdata-cdh02 ~]# netstat -tunlp|grep 8088
tcp 0 0 172.21.0.20:8088 0.0.0.0:* LISTEN 20606/java
BTW, I check yarn logs, it seems that yarn has successfully allocated resources for flink.